Electric thermos cup moulding

In addition, our company has established cooperative relationships with plastic raw material suppliers, printing manufacturers, etc. to ensure the supply of raw materials and printing quality. Through our rich experience and perfect supply chain, our company can provide customers with high-quality customized Electric thermos cup products to meet their specific needs. At the same time, we have 10 years of professional foreign trade service experience, understand the foreign trade process, and better serve our customers. For Electric thermos cup products, we can make corresponding plastic parts, which is mainly done through injection molds.

1. Product definition and mold design challenges

Functional integration requirements

Intelligent module embedding: Assembly space for temperature sensors (±0.5℃ accuracy), wireless charging coils (Qi 2.0 standard) and OLED screens (thickness ≤0.8mm) must be reserved, and the mold cavity tolerance must be controlled within ±0.02mm.

Double-layer vacuum structure: Using two-color injection molding process, the inner layer is food-grade PPSU (temperature resistance 180℃), the outer layer is PC/ABS alloy (impact strength ≥80kJ/m²), and the parting surface must achieve a sealing surface accuracy of 0.05mm.

Ergonomic adaptation

The curved grip area adopts micro-texture design (pit depth 10-30μm), the mold surface needs to be mirror polished (Ra≤0.01μm) and supplemented with nano-coating (friction coefficient ≤0.1)

2. Core manufacturing technology of mold

Conformal cooling system: 3D printed titanium alloy water channel (diameter 1.2mm, curvature radius ≥3mm), cooling efficiency increased by 45%, cycle shortened by 30%

Intelligent ejection mechanism: linear motor drive (thrust 1000N, repeatability ±1μm), avoid top cracking or deformation of thin-walled area (0.6mm)

Microporous exhaust design: laser etched honeycomb exhaust groove (depth 8-12μm), trapped air volume reduced by 90%, eliminating weld line defects

3. Material and process innovation

Application of special materials

Inner liner material: food-grade PPSU (compliant with FDA 21 CFR 177.1655), the mold needs to be temperature resistant to 220℃ (using YXR33 tungsten-molybdenum alloy steel);

Shell material: PC/ABS+30% carbon fiber reinforcement (thermal conductivity 0.8W/m·K), adapted to the heat dissipation requirements of wireless charging.

Embedded injection molding process

Before the second injection molding, the electronic module is accurately implanted by a manipulator (positioning accuracy ±0.01mm), and the mold needs to be equipped with a 64-pin high-density connector slot;

In-mold labeling (IML) technology is used to integrate a scratch-resistant and wear-resistant AR coating screen protector.

4. Intelligent production system

Digital twin verification

Build a mold-product joint simulation model based on NVIDIA Omniverse to predict the injection stress distribution (error ≤3%) and optimize the gate position (reduce the probability of flow marks by 80%).

Online quality monitoring

The embedded fiber optic sensor monitors the melt pressure (±0.1MPa) and temperature (±0.3℃) in real time, and AI dynamically adjusts the holding curve (pressure fluctuation ≤1%);

Machine vision (5μm resolution) is used to detect the integrity of the sealing surface, and defective products are automatically sorted (accuracy ≥99.9%)

The following is the design and manufacturing process of the computer thermos cup injection mold:

1. Product demand analysis and mold design

Structural disassembly and function matching

Analyze the installation position of the thermos cup body and smart module (display, sensor), and determine the split injection molding or insert injection molding scheme.

The double-layer vacuum structure requires the design of independent inner and outer cavities, and adopts a two-color injection molding process or two-time molding to ensure the interlayer gap accuracy (usually ≤0.1mm).

Mold parting surface design

The main parting surface is set at the mouth or bottom of the cup to avoid affecting the appearance; the sealing thread area adopts a precision insert structure with a matching tolerance of ≤0.02mm.

For the reserved grooves of electronic components, a lateral core pulling mechanism or a movable insert is designed to avoid demolding interference.

Optimization of runner and cooling system

The hot runner system is used to reduce waste (applicable to materials such as PP/PC), and the temperature difference is controlled within ±3℃ with conformal cooling water channels.

Add a local cooling circuit in the threaded area of the cup mouth to prevent shrinkage and deformation from causing seal failure.

2. Mold materials and processing technology

Material selection of core components

The cavity/core uses pre-hardened mold steel with a hardness of HRC 52-56 (such as NAK80, S136), taking into account wear resistance and rust prevention requirements.

The ejector mechanism is titanium-plated to reduce friction and jamming with plastic parts.

Precision machining stage

The cavity is milled by a five-axis linkage machining center with a surface roughness of Ra≤0.4μm; the threaded part is cut by slow wire cutting (accuracy ±0.005mm).

The vacuum layer gap is formed by EDM electric spark machining, and the discharge gap compensation requires reserved material shrinkage (PP is about 1.5-2%).

3. Trial mold verification and problem correction

First sample inspection items

Dimension inspection: focus on verifying the cup diameter tolerance (usually H8 grade) and thread fit clearance (≤0.05mm).

Sealing test: After injecting 80℃ hot water, vacuumize and hold the pressure for 24 hours. The pressure drop is ≤5kPa to pass.

Common defect countermeasures

Weld line problem: adjust the gate position to the non-appearance surface and increase the melt temperature by 10-15℃.

Vacuum layer perforation: optimize the ejector pin layout to reduce demolding stress; increase the holding time to 8-10 seconds.

We are a Electric thermos cup mold manufacturer, providing high-quality Electric thermos cup mold manufacturing. As long as you want to customize/develop Electric thermos cup products, you can find us. We have professional injection mold design and mature manufacturing technology, providing you with one-stop service, from product design-mold making-product production-product packaging-product transportation, we can help you in every link. As long as you come to us, we will provide you with the ultimate service and satisfy you in terms of product quality, production time, information dialogue, etc.

Plastic Injection Mould making

Plastic molding specifications

Mold design:

Transaction process:

Mold testing:

Product packaging

Factory

We are Custom Plastic Mold factory. Our factory is plastic injection mold maker. we has 17 years of experience in professional custom plastic mold and 10 years of foreign trade experience. We are custom Plastic Mold supplier. We can provide custom Plastic Mold service. Our factory can make the Injection molded plastic parts, and the quality of the products will satisfy you.

We have more than 50 high-end machines and hundreds of engineers and designers. We can provide one-stop service, from product design - mold making - product production - product packaging - transportation. We have a complete production chain. We can meet all your requirements.

Services we provide:

Professional custom mold service, Plastic mold design and manufacturing .plastic product production, product design, mold design, blow mold customization, rotational mold customization, die-casting mold customization. 3D printing services, CNC manufacturing services, product packaging, customized packaging, shipping services.

We always adhere to the principles of quality first and time first. While providing customers with the highest quality products, try to maximize the production efficiency and shorten production time. We are proud to tell every customer that our company has not lost any customer since its establishment.If there is a problem with the product, we will seek a solution actively and take responsibility to the end.

FAQ

Q1: Are you trading company or manufacturer ?

A: We are manufacturers.

Q2. When can I get the quotation?

A: We usually quote within 2 days after we get your inquiry.

If you are very urgent, please call us or tell us in your email so that we can quote for you first.

Q3. How long is the lead-time for mold?

A: It all depends on the products' size and complexity. Normally, the lead time is 25 days.

Q4. I have no 3D drawing, how should I start the new project?

A: You can supply us a molding sample, we will help you finish the 3D drawing design.

Q5. Before shipment, how to make sure the products quality?

A: If you don't come to our factory and also don't have the third party for inspection, we will be as your inspection worker.

We will supply you a video for production process detail include process report, products size structure and surface detail, packing detail and so on.

Q6. What is your payment terms?

A: Mold Payment: 40% deposit by T/T in advance, 30% second mold payment before sending out the first trial samples, 30% mold balance after you agree the final samples.

B:Production Payment: 50% deposit in advance, 50% before sending out the final goods.

Q7: How do you make our business long-term and good relationship?

A:1. We keep good quality and competitive price to ensure our customers benefit for best quality products.

2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.